Journal of Korean Society of Water and Wastewater (상하수도학회지)

The Korean Society of Water and Wastewater (대한상하수도학회)
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Enhanced sewage effluent treatment with oxidation and adsorption technologies for micropollutant control: current status and implications

미량오염물질 관리를 위한 산화 및 흡착 기반 하수 방류수 강화처리 기술의 연구 동향 및 시사점

  • Choi, Sangki (School of Earth Sciences and Environmental Engineering, Gwangju Institute of Science and Technology (GIST)) ;
  • Lee, Woongbae (School of Earth Sciences and Environmental Engineering, Gwangju Institute of Science and Technology (GIST)) ;
  • Kim, Young Mo (Department of Civil and Environmental Engineering, Hanyang University) ;
  • Hong, Seok Won (Center for Water Cycle Research, Korea Institute of Science and Technology (KIST)) ;
  • Son, Heejong (Water Quality Institute, Busan Water Authority) ;
  • Lee, Yunho (School of Earth Sciences and Environmental Engineering, Gwangju Institute of Science and Technology (GIST))
  • 최상기 (광주과학기술원 지구환경공학부) ;
  • 이웅배 (광주과학기술원 지구환경공학부) ;
  • 김영모 (한양대학교 건설환경공학과) ;
  • 홍석원 (한국과학기술연구원 물자원순환연구센터) ;
  • 손희종 (부산광역시 상수도사업본부 수질연구소) ;
  • 이윤호 (광주과학기술원 지구환경공학부)
  • Received : 2022.02.03
  • Accepted : 2022.02.18
  • Published : 2022.04.15
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Abstract

Conventional wastewater treatment plants (WWTPs) do not fully remove micropollutants. Enhanced treatment of sewage effluents is being considered or implemented in some countries to minimize the discharge of problematic micropollutants from WWTPs. Representative enhanced sewage treatment technologies for micropollutant removal were reviewed, including their current status of research and development. Advanced oxidation processes (AOPs) such as ozonation and UV/H2O2 and adsorption processes using powdered (PAC) and granular activated carbon (GAC) were mainly discussed with focusing on process principles for the micropollutant removal, effect of process operation and water matrix factors, and technical and economic feasibility. Pilot- and full-scale studies have shown that ozonation, PAC, and GAC can achieve significant elimination of various micropollutants at economically feasible costs(0.16-0.29 €/m3). Considering the current status of domestic WWTPs, ozonation and PAC were found to be the most feasible options for the enhanced sewage effluent treatment. Although ozonation and PAC are all mature technologies, a range of technical aspects should be considered for their successful application, such as energy consumption, CO2 emission, byproduct or waste generation, and ease of system construction/operation/maintenance. More feasibility studies considering domestic wastewater characteristics and WWTP conditions are required to apply ozonation or PAC/GAC adsorption process to enhance sewage effluent treatment in Korea.

Keywords

Acknowledgement

본 결과물은 환경부의 재원으로 한국환경산업기술원의 상하수도 혁신 기술개발사업의 지원을 받아 연구되었습니다 (2019002710004).

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